diff --git a/lib/ace/css/editor.css b/lib/ace/css/editor.css
index 7df30623..5793ddc1 100644
--- a/lib/ace/css/editor.css
+++ b/lib/ace/css/editor.css
@@ -4,7 +4,7 @@
 .ace_editor {
     position: absolute;
     overflow: hidden;
-    font-family: 'Monaco', 'Menlo', 'Droid Sans Mono', 'Courier New', monospace;
+    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Droid Sans Mono', 'Courier New', monospace;
     font-size: 12px;
 }